(19)
(11) EP 0 685 339 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
23.07.1997 Bulletin 1997/30

(43) Date of publication A2:
06.12.1995 Bulletin 1995/49

(21) Application number: 95107816.1

(22) Date of filing: 22.05.1995
(51) International Patent Classification (IPC)6: B41J 2/175
(84) Designated Contracting States:
DE FR GB IT

(30) Priority: 23.05.1994 JP 108141/94
17.05.1995 JP 118489/95

(71) Applicant: CANON KABUSHIKI KAISHA
Tokyo (JP)

(72) Inventors:
  • Shimomura, Akihiko c/o Canon K.K.
    Tokyo (JP)
  • Kishida, Hajime c/o Canon K.K.
    Tokyo (JP)
  • Shioya, Makoto c/o Canon K.K.
    Tokyo (JP)
  • Sato, Osamu c/o Canon K.K.
    Tokyo (JP)
  • Shiba, Shoji c/o Canon K.K.
    Tokyo (JP)
  • Taneya, Yoichi c/o Canon K.K.
    Tokyo (JP)
  • Suzuki, Mariko c/o Canon K.K.
    Tokyo (JP)

(74) Representative: Pellmann, Hans-Bernd, Dipl.-Ing. 
Patentanwaltsbüro Tiedtke-Bühling-Kinne & Partner Bavariaring 4
80336 München
80336 München (DE)

   


(54) Ink tank cartridge and ink filling device therefor


(57) An ink tank cartridge (1) having ink-storing part for storing ink to be supplied to a recording head which ejects ink in droplets and being mountable to and demountable from a recording apparatus, the ink tank cartridge comprises a main body of a container constituting the ink-storing part; an ink-absorbent held in the main body of the container for storing the ink; an ink-supplying part for supplying the ink to the recording head; and an air communication part (4) to communicate the interior of the main body of the container with the air, the air communication part having a large-diameter opening capable of opening the interior of the main body of the container to the outside and being provided with a plug member (4a) having a fine opening (4c) attachably to and detachably from the large-diameter opening.






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